Technical concept of disposal for very low-level, low-level and short-lived intermediate-level radioactive waste of the Belarusian NPP
https://doi.org/10.29235/1561-8358-2022-67-1-105-118
Abstract
The paper briefly presents the principal technical solutions for radioactive waste disposal facilities (RWDF), as well as for auxiliary buildings, structures and engineering systems for this RWDF, which ensure safe and economically feasible disposal of radioactive waste (RW) generated from two units of the Belarusian NPP during 60 years of operation and during decommissioning. The suggested conceptual RWDF design includes an assessment of its radiation safety during operation and long-term post-closure safety. It is shown that the suggested RWDF concept ensures safe RW disposal in the period of potential danger of RW taking into account possible external impacts of natural and man-made origin. The aggregate technical and economic parameters of the suggested RWDF project were evaluated both in general and for the first stage of construction. The RW total activity that can be placed in a RWDF, provided the long-term safety of the RWDF is ensured, is 9.0·1014 Bq, including α-emitters – 6.8·109 Bq, transuranium radionuclides – 6.8·109 Bq; for very low-level waste – 4.1·109 Bq. Taking into account the achieved level of detailing of technical solutions in the conceptual design, it can be used at the stage of object design.
About the Authors
M. L. ZhemzhurovBelarus
Mikhail L. Zhemzhurov – D. Sc. (Engineering), Associate Professor, Head of the Laboratory of Radiation and Chemical Research of the Environment
47/17, Prilesye village, 223063, Lugovoslobodskaya village, Minsk District, Minsk Region
N. D. Kuzmina
Belarus
Natallia D. Kuzmina – Senior Researcher, Laboratory for Deterministic and Probabilistic Safety Analysis of Nuclear Facilities
47/17, Prilesye village, 223063, Lugovoslobodskaya village, Minsk District, Minsk Region
References
1. 7th National Report of the Republic of Belarus on Compliance with Obligations of the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management. Available at: https://gosatomnadzor.mchs. gov.by/upload/iblock/294/belarus_jc_national_report_2020_ru.pdf (accessed 5 September 2021) (in Russian).
2. Tsebakovskaya N.S., Utkin S.S., Kapyrin I.V., Medyantsev N.V., Shamina A. V. Review of Foreign Practices of SNF and RW disposal. Moscow, Komtekhprint Publ., 2015. 208 p. (in Russian).
3. Classification of radioactive waste. IAEA-GSG-1. Vienna, 2009. 68 p.
4. 6th National Report of the Russian Federation on Compliance with Obligations of the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management. Available at: http://www.gosnadzor.ru/activity/international/national%20reports/Russian_Federation_rus.pdf (accessed 7 September 2021) (in Russian).
5. Technical considerations in the design of near surface disposal facilities for radioactive waste. IAEA-TECDOC-1256. Vienna, 2001. 60 p.
6. Ivanov E. A., Sharov D.A., Kuryndin D.A. Actual problems of the classification of removable solid radioactive waste generated by the use of atomic energy. Yadernaya i radiatsionnaya bezopasnost’ = Nuclear and Radiation Safety, 2018, no. 2 (88), pp. 11–23 (in Russian).
7. Kazazyan V.T., Malykhin A.P., Molodykh V.G., Shiryaeva N.M. Recommendations for choosing a site for radioactive waste disposal facilities of the Belarusian nuclear power plant. Materialy 7-i Mezhdunarodnoi konferentsii “Atomnaya energetika, yadernye i radiatsionnye tekhnologii 21-go veka” [Materials of the 7th International Conference “Nuclear Power Engineering, Nuclear and Radiation Technologies of the 21st Century”]. Minsk, 2018, pp. 162–166 (in Russian).